42545254541 has 2 divisors, whose sum is σ = 42545254542. Its totient is φ = 42545254540.

The previous prime is 42545254429. The next prime is 42545254567. The reversal of 42545254541 is 14545254524.

42545254541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42185052100 + 360202441 = 205390^2 + 18979^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42545254541 is a prime.

It is a super-3 number, since 3×42545254541³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42545224541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21272627270 + 21272627271.

It is an arithmetic number, because the mean of its divisors is an integer number (21272627271).

Almost surely, 2^42545254541 is an apocalyptic number.

It is an amenable number.

42545254541 is a deficient number, since it is larger than the sum of its proper divisors (1).

42545254541 is an equidigital number, since it uses as much as digits as its factorization.

42545254541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 640000, while the sum is 41.

The spelling of 42545254541 in words is "forty-two billion, five hundred forty-five million, two hundred fifty-four thousand, five hundred forty-one".